<template>
  <div class="app-container">
    <el-form :model="queryParams" ref="queryForm" size="small" :inline="true" v-show="showSearch" label-width="68px">
      <el-form-item label="序号" prop="number">
        <el-input
          v-model="queryParams.number"
          placeholder="请输入序号"
          clearable
          @keyup.enter.native="handleQuery"
        />
      </el-form-item>
      <el-form-item label="题目" prop="name">
        <el-input
          v-model="queryParams.name"
          placeholder="请输入题目"
          clearable
          @keyup.enter.native="handleQuery"
        />
      </el-form-item>
      <el-form-item>
        <el-button type="primary" icon="el-icon-search" size="mini" @click="handleQuery">搜索</el-button>
        <el-button icon="el-icon-refresh" size="mini" @click="resetQuery">重置</el-button>
      </el-form-item>
    </el-form>

    <el-row :gutter="10" class="mb8">
      <el-col :span="1.5">
        <el-button
          type="success"
          plain
          icon="el-icon-edit"
          size="mini"
          :disabled="single"
          @click="handleUpdate"
          v-hasPermi="['base:topic:edit']"
        >修改
        </el-button>
      </el-col>
      <el-col :span="1.5">
        <el-button
          type="warning"
          plain
          icon="el-icon-download"
          size="mini"
          @click="handleExport"
          v-hasPermi="['base:topic:export']"
        >导出
        </el-button>
      </el-col>
      <right-toolbar :showSearch.sync="showSearch" @queryTable="getList"></right-toolbar>
    </el-row>

    <el-table v-loading="loading" :data="topicList" @selection-change="handleSelectionChange">
      <el-table-column type="selection" width="55" align="center"/>
      <el-table-column label="序号" align="center" prop="number" width="80"/>
      <el-table-column label="回答类型" align="center" prop="answerType" width="80">
        <template slot-scope="scope">
          <dict-tag :options="dict.type.answer_type" :value="scope.row.answerType"/>
        </template>
      </el-table-column>
      <el-table-column label="题目类型" align="center" prop="questionType" width="80">
        <template slot-scope="scope">
          <dict-tag :options="dict.type.question_type" :value="scope.row.questionType"/>
        </template>
      </el-table-column>
      <el-table-column label="题目" align="center" prop="name"/>
      <el-table-column label="选项A" align="center" prop="optionA" width="100"/>
      <el-table-column label="选项B" align="center" prop="optionB" width="100"/>
      <el-table-column label="选项C" align="center" prop="optionC" width="100"/>
      <el-table-column label="选项D" align="center" prop="optionD" width="100"/>
      <el-table-column label="答案" align="center" prop="answer" width="400">
        <template slot-scope="scope">
          <p v-html="scope.row.answer" style="white-space: pre-line;margin: 0;"></p>
        </template>
      </el-table-column>
      <el-table-column label="操作" align="center" class-name="small-padding fixed-width">
        <template slot-scope="scope">
          <el-button
            size="mini"
            type="text"
            icon="el-icon-edit"
            @click="handleUpdate(scope.row)"
            v-hasPermi="['base:topic:edit']"
          >修改
          </el-button>
        </template>
      </el-table-column>
    </el-table>

    <pagination
      v-show="total>0"
      :total="total"
      :page.sync="queryParams.pageNum"
      :limit.sync="queryParams.pageSize"
      @pagination="getList"
    />

    <!-- 添加或修改题目对话框 -->
    <el-dialog :title="title" :visible.sync="open" width="500px" append-to-body>
      <el-form ref="form" :model="form" :rules="rules" label-width="80px">
        <el-form-item label="题目" prop="name">
          <el-input v-model="form.name" placeholder="请输入题目">
            <el-button slot="append" @click="insert_">(_)</el-button>
          </el-input>
        </el-form-item>
        <el-form-item label="选项A" prop="optionA" v-if="form.questionType==2">
          <el-input v-model="form.optionA" placeholder="请输入选项A"/>
        </el-form-item>
        <el-form-item label="选项B" prop="optionB" v-if="form.questionType==2">
          <el-input v-model="form.optionB" placeholder="请输入选项B"/>
        </el-form-item>
        <el-form-item label="选项C" prop="optionC" v-if="form.questionType==2">
          <el-input v-model="form.optionC" placeholder="请输入选项C"/>
        </el-form-item>
        <el-form-item label="选项D" prop="optionD" v-if="form.questionType==2">
          <el-input v-model="form.optionD" placeholder="请输入选项D"/>
        </el-form-item>
        <el-form-item label="答案" prop="answer">
          <el-input v-model="form.answer" type="textarea" rows="5" placeholder="请输入内容"/>
        </el-form-item>
      </el-form>
      <div slot="footer" class="dialog-footer">
        <el-button type="primary" @click="submitForm">确 定</el-button>
        <el-button @click="cancel">取 消</el-button>
      </div>
    </el-dialog>
  </div>
</template>

<script>
import {listTopic, getTopic, delTopic, addTopic, updateTopic} from "@/api/base/topic";

export default {
  name: "Topic",
  dicts: ['answer_type', 'question_type'],
  data() {
    return {
      // 遮罩层
      loading: true,
      // 选中数组
      ids: [],
      // 非单个禁用
      single: true,
      // 非多个禁用
      multiple: true,
      // 显示搜索条件
      showSearch: true,
      // 总条数
      total: 0,
      // 题目表格数据
      topicList: [],
      // 弹出层标题
      title: "",
      // 是否显示弹出层
      open: false,
      // 查询参数
      queryParams: {
        pageNum: 1,
        pageSize: 10,
        paperId: null,
        number: null,
        answerType: null,
        grade: null,
        subject: null,
        questionType: null,
        name: null,
        optionA: null,
        optionB: null,
        optionC: null,
        optionD: null,
        answer: null
      },
      // 表单参数
      form: {},
      // 表单校验
      rules: {}
    };
  },
  created() {
    const paperId = this.$route.params && this.$route.params.paperId;
    this.queryParams.paperId = paperId;
    this.getList();
  },
  methods: {
    /** 查询题目列表 */
    getList() {
      this.loading = true;
      listTopic(this.queryParams).then(response => {
        this.topicList = response.rows;
        this.total = response.total;
        this.loading = false;
      });
    },
    // 取消按钮
    cancel() {
      this.open = false;
      this.reset();
    },
    // 表单重置
    reset() {
      this.form = {
        topicId: null,
        paperId: null,
        number: null,
        answerType: null,
        grade: null,
        subject: null,
        questionType: null,
        name: null,
        optionA: null,
        optionB: null,
        optionC: null,
        optionD: null,
        answer: null
      };
      this.resetForm("form");
    },
    /** 搜索按钮操作 */
    handleQuery() {
      this.queryParams.pageNum = 1;
      this.getList();
    },
    /** 重置按钮操作 */
    resetQuery() {
      this.resetForm("queryForm");
      this.handleQuery();
    },
    // 多选框选中数据
    handleSelectionChange(selection) {
      this.ids = selection.map(item => item.topicId)
      this.single = selection.length !== 1
      this.multiple = !selection.length
    },
    /** 新增按钮操作 */
    handleAdd() {
      this.reset();
      this.open = true;
      this.title = "添加题目";
    },
    /** 修改按钮操作 */
    handleUpdate(row) {
      this.reset();
      const topicId = row.topicId || this.ids
      getTopic(topicId).then(response => {
        this.form = response.data;
        this.open = true;
        this.title = "修改题目";
      });
    },
    /** 提交按钮 */
    submitForm() {
      this.$refs["form"].validate(valid => {
        if (valid) {
          if (this.form.topicId != null) {
            updateTopic(this.form).then(response => {
              this.$modal.msgSuccess("修改成功");
              this.open = false;
              this.getList();
            });
          } else {
            addTopic(this.form).then(response => {
              this.$modal.msgSuccess("新增成功");
              this.open = false;
              this.getList();
            });
          }
        }
      });
    },
    /** 删除按钮操作 */
    handleDelete(row) {
      const topicIds = row.topicId || this.ids;
      this.$modal.confirm('是否确认删除题目编号为"' + topicIds + '"的数据项？').then(function () {
        return delTopic(topicIds);
      }).then(() => {
        this.getList();
        this.$modal.msgSuccess("删除成功");
      }).catch(() => {
      });
    },
    /** 导出按钮操作 */
    handleExport() {
      this.download('base/topic/export', {
        ...this.queryParams
      }, `topic_${new Date().getTime()}.xlsx`)
    },
    insert_() {
      this.form.name = this.form.name + "（____）";
    }
  }
};
</script>
